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Vinci engine liquid oxygen turbopump
The Vinci liquid oxygen turbopump has a lower flow rate and outlet pressure than the Vulcain 2. Avio developed and tested numerous key technologies for the unit, including a new, more compact type of Dynamic Seal Package (DSP) which acts as the physical separation between the hot gasses that feed the turbine (+600°C) and the liquid oxygen on the pump side (-180°C).
Turbopumps for rocket engines
Turbopumps
Turbopumps are one of the main components in liquid propellant engines for aerospace use. These machines offer extreme performance, as they are designed to feed the combustion chamber with propellants drawn from tanks that are pressurized to hundreds of bars.
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Vulcain 2 engine liquid oxygen turbopump
The Vulcain 2 (Mk2) turbopump is common to both the Ariane 5 program and the Ariane 6 launcher family currently under development.
The Vulcain 2 (Mk2) liquid oxygen turbopump offers a flow rate and outlet pressure that are 30% higher than the Vulcain 1. As compared with its predecessor, the Mk2 turbopump features a host of improvements in hydraulics, balance, sealing, and turbine performance.
Segments for solid rocket boosters
S2 and S3 segments
The S2 and S3 segments (the metallic component is manufactured by MT Aerospace) once thermally protected (at Colleferro), are then shipped to French Guiana where they are each loaded with 107 tons of solid propellant by the Regulus company (joint venture 60% Avio and 40% Ariane Group). All the segments are then integrated by Europropulsion, a company equally shared by Avio and Ariane Group and assembled with the igniter and the nozzle by ASL.
Segment for solid rocket boosters
S1 segment
The S1 segment is one of three segments for the Ariane 5 booster and is fully manufactured in Avio’s Colleferro plant (Rome, Italy), except for the metallic component, manufactured by MT Aerospace.
The manufacturing process is:
• application of thermal protection;
• loading with 25 tons of solid propellant;
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Avio is leader in space propulsion, with more than 1,300 employees located in Italy, France and French Guiana. Since its foundation, in 1912, the company has played a key role in designing, manufacturing and integrating space launch systems and tactical missiles.
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